School-desk



(No Model.) 2 SheetsSheet 1.

G. S. BARNES.

SCHOOL DESK. No. 482,465. Patented Sept. 13, 1892.

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(No Model.) 2 Sheets-Sheet 2. O. S. BARNES.

SCHOOL DESK. No. 482,465. Patented Sept. 13, 1892;.-

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UNITED STATES PATENT OEEIcE.

CYRENIUS S. BARNES, OF ELBA, NEBRASKA.

SCHOOL-DESK.

SPECIFICATION forming part of Letters Patent No. 482,465, datedSeptember 13, 1892. Application filed January '7, 1892. Serial No.417,305. (No model.)

To 60 whom it may concern.-

Be it known that I, CYRENIUS S. BAENEs, a citizen of the United States,residing at Elba, in the county of Howard and State of Nebraska, haveinvented a new and useful School- Desk, of which the following is aspecification.

The invention relates to improvements in school-desks.

The object of the present invention is to provide a school-desk in whichthe top may be elevated to form a book-rest to obviate the necessity ofleaning over the desk in studying and enable a pupil to sit upright andhave a book supported by the desk in convenient position for reading.

The invention consists in the construction and novel combination andarrangement of parts hereinafter fully described,illustrated in theaccompanying drawings, and pointed out in the claims hereto appended.

In the drawings, Figure 1 is a perspective view of a desk constructed inaccordance with this invention. Fig. 2 is a side elevatin,the top of thedesk being raised. Fig. 3 is a central vertical longitudinal sectionalview, the top being lowered. Fig. 4 is a detail sectional view on theline 00 5c of Fig. 2.

Like numerals of reference indicate corresponding parts in all thefigures of the draw- 1ngs. 1 1 designate feet, from which rise endstandards 2, connected across their front edges by boards 3, forming theback of the seat next in front.

4 designates a seat having brackets 5 pivoted at 6 to the end standardsandv adapted when the seat is let down into a horizontal position tobear against the block 7.

8 is a flat board connecting the end standards just in rear of the backof the seat, and on this board is arranged an ink-well 9. At the innersides of the standards, at their upper ends, are arranged walls 20,which are connected at their lower edges by a board 21, forming thebottom of the desk, while the top 22 of the desk extends over the wallsand out over the standards and is adapted to be raised and lowered by asystem of levers located between the standards and the walls 20. Anoperating-lever23 is pivoted at 24. to the righthand standard and isprovided with a longitudinal slot 25, and it has its outer end forming ahandle 26 and extending through an opening 27 in the rear edge of theright-hand standard and carrying a resilient pawl 23, which is adaptedto engage notches 29 in the wall of the opening 27. An L-shaped lever 30is arranged at the right-hand side of the desk and is rigidly mounted atits angle on a rod or rock-shaft 31, which is journaled in suitablebearings of the standards and which extends across the desk beneath thebottom board 21 and is provided at the left-hand side of the desk withan arm 30 and it will be seen that the latter and the inner arm of theL-shaped lever move in unison. The outer arm of the L-shaped lever isprovided with a pin 32, which is arranged in the slot 25 of theoperating-lever 23 and is adapted to move in the said slot. of theL-shaped lever are pivotally connected by links 33 with arms 34, whichare provided with slots 35 and which receive therein and move over pins36 of the standards. The arms 3 L are provided at their front ends withpins 37, which are arranged in guides 38 of the standards and whichpivotally connect triangular brackets 40 to the arms 34. The triangularbrackets 40 support the desk-top and are provided with depending loops41, which slide over pins 42 of the standards.

When it is desired to have the desk-top level, the handle 26 is raised,the catch being disengaged from the notch 29, and this raising of thehandle turns the L-shaped lever and the arm 30, so that the links 33 arecaused to draw the arms 34 downward around the pivots 36, and the pins37 move down in the guides 38 and correspondingly draw the desktop downwith them to the position shown in Fi 3.

lVhen it is desired to form an elevated book-rest to avoid bending overthe desk, the operating-lever is depressed and produces a reversemovement of the parts to that just described and raises the desk-top, asillustrated in Fig. 2 of the accompanying drawings. By

engaging the catch in a central notch the desk top is locked at anintermediate position.

That I claim is=- 1. In a desk, the combination of desk-standardsprovided with guides, a desk-top, brackets supporting the desk-top andprovided with pins arranged in said guides, arms pivotally The arm 30and the inner arm connected to the brackets and having a limitedmovement on the standards, and means for raising and lowering the arms,substantially as described.

2. In a desk, the combination of desk-standards provided with guides, adesk-top, brackets supporting the desk-top and provided with pinsarranged in said guides and adapted to move therein, arms pivotallyconnected to the brackets and provided with longitudinal slots, pinsprojecting from the standards and arranged in the slots of the arms, andmeans for raising and lowering the arms, substantially as described.

3. In a desk, the combination of a standard provided with a guide, adesk-top, a bracket supporting the desk-top and provided with a pinarranged in said guide, an arm pivotally connected to the bracket andhaving a limited movement on the standard, an L-shaped lever fulcrumedat its angle and having one end connected to said arm, and anoperatinglever connected to the other end of the L- shaped lever,substantially as described.

4. In a desk, the combination of standards provided with guides, adesk-top, brackets supporting the desk-top and provided with pinsarranged in said guides, arms 34, pivotall y connected. to the bracketsand having a limited movement on the standards, a rod journaled in thestandards and provided at one end with an arm 30*, rigidly connected toit, an L-shaped lever rigidly secured at its angle to the other end ofthe rod, links connecting the inner ends of the L-shaped lever and thearms 30 with the arms 34:, and an operating-lever connected with theouter end of the L-shaped lever, substantially as described.

5. In a desk, the combination of a standard provided with a guide, adesk-top, a bracket supporting the desk-top and provided with a pinarranged in said guide, an arm pivotally connected to the bracket andhaving a limited movement on the standard, an L-shaped lever fulcrumedat its angle and having its inner end connected with said arm andprovided at its other end with a pin, and an opcrating-lever fulcrumedon the standard and provided with a longitudinal slot receiving the pinof the L-shaped lever, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses. I

OYRENIUS S. BARNES.

Witnesses:

MARIoN A. FUGATT, JOHN N. PETERS.

